his emotions but feels them deeper than most of us. >> reporter: according to court documents, the teacher and teenager exchanges sexually explicit messages, then later the teacher went to the residence while his family was out and had sex with the 15-year-old student. >> this teacher chose, in her position of trust over him, she chose to violate the trust and further chose to harm this child.te the chronology of the case, november 10th, the parents discover the text messages from the teacher. they tell the school, they tell police. november 11th, the frost school fires the teacher, police search her home and get an arrest warrant. by that time, the teacher has left town. november 13th, sex assault suspect sharon kuai flies from new york to hong kong.